Rule 34 Dev - 2018 anthro anus arno backsack balls black_skin blue_eyes brothers brown_fur brown_hair celio cetacean chapter_3 clothed clothing comic cum cum_in_mouth cum_inside dialogue english_text feline fur group group_sex hair hi_res humanoid_penis incest male mammal marine multicolored_fur multicolored_skin muscular muscular_male night oral orca orgasm outside oversized_fellatio oversized_oral page_44 page_number penis penis_on_tongue peritian seaside sex siamese sibling simple_background size_difference tan_fur teeth text threesome tongue twins two_tone_fur two_tone_skin vein whale white_skin yaoi|3258667072